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Gauss's Law

A closed surf...

Question

A closed surface encloses a net charge of -3.60 $μ$ C. What is the electric flux through the surface?

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Solution

By Gauss's law, the flux $ϕ = \frac{Q_{e n}}{ϵ_{0}} = \frac{- 3.6 \times 10^{- 6}}{8.85 \times 10^{- 12}} = - 4.07 \times 10^{5} N . m^{2} / C$

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